Oversee independent monitoring and audits related to medical necessity, plans of care and certifications, progress reports, timed-code documentation, units, therapy modifiers, PTA/OTA services, provider enrollment, payer requirements, denials, refunds, and overpayments. Significant knowledge of outpatient physical and occupational therapy coding, billing, documentation, medical-necessity, and reimbursement practices, including timed codes, units, modifiers, PTA/OTA services, plans of care, progress reporting, and payer audits.